4Videosoft iPhone 4 to Mac Transfer is a backup utility. It allows you to connect your iPhone 4 to your Mac and download data from it without having to sync it with iTunes. I personally don't mind using iTunes to sync my iPhone. But I know people who absolutely despise the process. So, this is a tool that will appeal to users like that. It should be noted that this particular app only lets you transfer data from your iPhone to your Mac, and not the other way around. If you want to put content on your iPhone 4, you may want to download the iPhone 4 Manager by 4Videosoft.
There are two versions of this app: Standard and Ultimate. The main difference between the two apps is that the Standard version restricts the types of content that you can download. For example, you can't download TV shows with the Standard version.
When you launch the app with your iPhone connected, you will see a brief summary of it, including how much space is used in music, movies, etc. Then you can select one of the categories to see the files on your device. After that, you can simply click on a file and back it up to your Mac.